Battery box or other receptacle.



UNITED f STATES PATENT OFFICE.

LEONARD PAGET, OE NEw YORK, N. Y., AssreNORBY MESNE ASSIGNMENTS,

To OHARLESOOSTER, OE NEW YORK, N. Y.

BATTERY BOXOR OTHER RECEPTACLE.

SPECIFICATION formingpart of Letters Patent No. 724,607, dated April 7,1903.

Application filed August 28, 1901. Serial No. 73,536. (No model.)

fo a/ZZ whom it nfl/(ty concern:

Be it known that I, LEONARD PAGET, a citizen of the United States.residing at New York city, county of New York, and State of New York,have invented certain newA and useful Improvements in Battery Boxes orother Receptacles, fully described and represented in the followingspecification andthe accompanying drawings,forming a part of the rosame.

The object of the present invention is to provide a light, strong,durable, and cheap receptacle or box which shall be inattackable byacid, andv especially to provide such a re- |5 ceptacle which shall forman improved elec; tric-battery box, being formed of material containingno electric-conducting material nor any material that will becomeconducting in battery use.

2o The invention includes an improved receptacle and electric-batterybox.

As a full understanding of the invention can best be given by a detaileddescription of my improved lreceptacle andthe preferred 2 5 method ofmaking it, such a description will now be given in connection with theaccompanying drawings, showing the receptaclein a form convenient for astorage-battery box, and the features forming the invention will 3othen` be specifically pointed out in the claims.

In the drawings, Figure l showsv the .rst step in the making of the box.Fig. 2 shows the second step, putting on the side strips.

Fig. 3 is a longitudinal section showing the completed box before theformer lis withdrawn. Fig. 4 is a cross-section o'f the same. Fig. 5 isa perspective of the completed box.

Referring now to said drawings,the method 4o of making the box is asfollows: A former A is used, which may be of wood, corresponding to theinterior dimensions desired in the box, and a sheet lof any suitablepaper, such as porous Manila paper, is first lapped around the bottomand two sides of the former, as shown in Fig. l, the paper being treatedwith the compound hereinafter described. Sheets 2 of similar papertreated with the same compound are then wrapped 5o aroundy the sides ofthe box, five or six sheets being thus put on successively and prefer-Yresin-oil.

ably being applied so as to break joints with each other,as shown inFig. 2. These sheets 2 are of such width and so applied as to form thedepth of box required and to extend beyond the bottom of the box, asshown in Fig. 2, and thusform a space at the bottom of the box for thereception of compound, as hereinafter described. As the sheets aresuccessively applied each is ironed down with a hot iron, so 6o that thecompound is thoroughly heated and the paper and the compound formed intoa firm mass,making a strong durable wallfor the box. The edges of thesheets 2 where they extend beyond the bottom of the former A are thencut at an angle, as shown in Fig. 3, so that the edge of each sheet isexposed to the compound which is filled into the space on the bottom ofthe box thus formed, and this space is then filled with a suitablecompound simi- 7o lar to that with which the sheets are treated, whichis simply poured in, so as to fill this space and form a thick bottom 3of compound for the box. The former A is then withdrawn, leaving the boxcomplete.

The requisites of the compound used in vmaking the battery-box are thatit shall contain such materials as to produce a firm'dense tough durablestructure when partially fused and combined with the paper and shall be8o inattackable by the battery-acids and contain no material that isconducting or lrendered conducting by theV battery action. If thereceptacle is not to constitute a battery box or other receptacle foruse where electrical action is to be considered, the presenceor absenceof conducting material may be immaterial.

The materials used in the compound may be varied somewhat; but Ipreferably use a 9o compound formed of ozokerite bitumen, and Each ofthese and the resulting compoundis inattackable bythebatteryacids andcontains no conducting material or material that will become conductingunder the battery action. Therosin-oil is fusible at. quite a lowtemperature, and thus penetrates and'permeates the paper under theironing heat. The bitumen is a cheap material of high insulatingqualities and fusible only at a higher temperature, so as to form acoating on the outside of the paper, which prevents IOC oxidation of orpassage of acid to the saturated paper, while the ozokerite acts as acoherer inthe structure. I have found that excellent results are securedwith equal parts of bitumen and ozokerite and one-sixth of the combinedweight of these materials in rosinoil. These proportions, however, maybe varied.

It will be seen that my box is clearly distinguished from boxes formedby vulcanizing before treatment with a shellac-enamel or the like. Mybox is not vulcanized, but depends for its efliciency on the saturationand coating of the paper by the more and less fusible constituents ofthe compound employed.

By my invention I secure a very light strong receptacle especiallyadapted for holding acids and as a storage-battery box in that itcontains no material that is attackable by acid or that is renderedconducting by the battery action. My box also is very cheap and simpleof construction and verydurable.

Vhat I claim is- 1. A receptacle formed of layers of paper treated withan acid-resisting compound combined with the paper as a Whole under theaction of heat, one of lthe constituents of said compound being morefusible and another less fusible, whereby the paper is saturated withthe more fusible and coated or glazed with the less fusibleconstituents, one of the constituents of the compound acting also as acoherer for the several layers of paper, substantially as described.

2. A receptacle formed of layers of paper treated with an acid-resistingcompound combined with the paper as a whole under the action of heat,one of the constituents of said compound being more fusible and anotherless fusible, whereby the paper is saturated with the more fusible andcoated or glazed with the less fusible constituents, one of theconstituents of the compound acting also as a coherer for the severallayers of paper, and a thick bottom of compound, substantially asdescribed.

3. A receptacle formed of layers of paper treated with an insulatingcompound inattackable by the battery-acids and combined with the paperas a whole under the action of heat, one of the constituents of saidcompound being more fusible and another less fusible, whereby the paperis saturated with the more fusible and coated or glazed with the lessfusible constituents, one 4of the constituents of the compound actingalso as a coherer for the several layers of paper, substantially asdescribed.

4. A receptacle formed of layers of paper treated with a compoundcontaining oil, bitumen and ozokerite and combined with the paper byheat, substantially as described.

5. A receptacle formed of layers of paper treated with an acid-resistingcompound and containing more fusible material by which the paper issaturated and less fusible material forming a coating on the paper, thelower edges of the paper forming the side walls of the receptacleextending below the paper bottom of the receptacle, and a body ofplastic compound filling the space formed by said walls below the paperbottom, substantially as described.

6. A receptacle formed of layers of paper treated with anacid-resistingcompound and containing more fusible material by which thepaper is saturated and less fusible material forming a coating on thepaper, the lower edges of the paper forming the side walls of thereceptacle extending below the paper bottom of the receptacle, and beingtrimmed at an angle from the outer edge inward so as to expose the edgeof each layer, and a body of plastic compound filling the space formedby said walls below the paper bottom, substantially as described.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

LEONARD PAGET.

Witnesses:

C. J. SAWYER, A. A. V. BOURKE.

